Complete the i18n migration by switching runtime setup and remaining components to i18next-vue, and add shared locale constants/helpers for SSR and client language handling.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Updated DangerZone.vue to use AppButton and AppDialog, replacing PrimeVue Button and Dialog components.
- Refactored DomainsDns.vue to utilize AppButton, AppDialog, and AppInput, enhancing the UI consistency.
- Modified NotificationSettings.vue and PlayerSettings.vue to implement AppButton and AppSwitch for better styling.
- Replaced PrimeVue components in SecurityNConnected.vue with AppButton, AppDialog, and AppInput for a cohesive design.
- Introduced AppConfirmHost for handling confirmation dialogs with a custom design.
- Created AppToastHost for managing toast notifications with custom styling and behavior.
- Added utility composables useAppConfirm and useAppToast for managing confirmation dialogs and toast notifications.
- Implemented AppProgressBar and AppSwitch components for improved UI elements.
